674 



TREES OF NOKTH AMERICA 



portion about If-' long; pedicels puberulous, ^'-^' long; sepals ovate, acuminate, pale 

 pubescent on the outer surface, coated on the inner surface with matted white hairs, 

 about one third as long as the lanceolate to ovate petals. Fruit subglobose to short- 

 oblong, hoary-tomentose, about ' in diameter. 



A tree, 70-80 high, with a trunk 2-3 in diameter, small often pendulous 

 branches forming a round-topped head, and branchlets bright red and lustrous dur- 

 ing their first winter and reddish brown in their second season. Winter-buds \'-^' 

 long, with pale red-brown scales. Bark of the trunk about V thick, deeply fur- 

 rowed, reddish brown and covered with small thin scales. 



Distribution. Rich woods; valley of the St. Lawrence River near Montreal, near 

 Rochester and Ithaca, New York, to eastern Pennsylvania, Delaware, Ohio, and 

 southward to northern Georgia and eastern Texas; probably often confounded with 

 Tilia pubescens, Ait., and still imperfectly known. 



5. Tilia heterophylla, Vent. Linden. Bee-tree. 



Leaves gradually narrowed and short-pointed at the apex, obliquely truncate or 

 cordate at the base, finely serrate, with short slender glandular teeth, membrana- 

 ceous, bright green and pubescent while young along the midribs above, becoming 



glabrous, silvery white and tomentulose on the lower surface, 4'-7' long, 4'-5' wide, 

 with slender midribs and primary veins; their petioles slender, glabrous, 2'-3' long. 

 Flowers appearing during the month of June; pedunculate bract usually decurrent 

 to within about \' of the base of the peduncle, or sometimes to the base, generally 

 about 4' long and \'-V wide; peduncle slender, stellate-pubescent, becoming gla- 

 brous, the free portion l'-2' long; pedicels slender, about \' long, nearly glabrous; 

 sepals narrow, acuminate, puberulous on the outer, tomentulose on the inner surface, 

 nearly \' long and one third shorter than the narrow acuminate petals. Fruit sub- 

 globose, ' in diameter, tomentulose, with short closely appressed cinereous hairs. 



A tree, 50-60 high, with a trunk 3-4 in diameter, slender branches forming 

 generally a narrow rather pyramidal head, and glabrous green or bright red branch- 

 lets gradually turning brown during their second year, and marked by numerous 

 large oblong pale lenticels. Winter-buds broadly ovate, bright red, covered with a 

 slight glaucous bloom, '-' long. Bark of the trunk about \' thick, deeply fur- 

 rowed, the surface broken into short thin light brown scales. Wood light brown 



